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National Stock Number:
5305-01-590-5078
Federal Supply Class:
5305
National Item Identification Number:
015905078
Description:
SCREW,CLOSE TOLERANCE
Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
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Manufacturer Information:
| C7985-3-5R | 06725 | SPS TECHNOLOGIES, LLC | | C7985-3-5R | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | C7985-3-5R | 0K6Z0 | SATURN FASTENERS INC | | C7985-3-5R | 17446 | HUCK INTERNATIONAL, INC | | C7985-3-5R | 27624 | SPS TECHNOLOGIES LLC | | C7985-3-5R | 56878 | SPS TECHNOLOGIES, LLC | | C7985-3-5R | 80539 | SPS TECHNOLOGIES, LLC | | C7985-3-5R | 81755 | LOCKHEED MARTIN CORPORATION | | C7985-3-5R | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.1900 INCHES | | THREAD QUANTITY PER INCH | 32 | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS-6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | SINGLE SHEAR STRENGTH | 132 POUNDS PER SQUARE INCH | | HEAD STYLE | HEXAGON | | WIDTH BETWEEN FLATS | 0.305 INCHES NOMINAL | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | HOLE TYPE | DRILLED | | HOLE DIAMETER | 0.070 INCHES NOMINAL | | SPECIAL FEATURES | MATERIAL: HI ALLOY STEEL PER AMS-6487 | | SUPPLEMENTARY FEATURES | ROCKWELL HARDNESS: C46-50 | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 100 DEGREES REDUCED HEAD, HEX RECESS, 132 KSI MIN SHEAR |
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